Crossword clues for Flat surface. 4 letters:AREAFlat surface.LEVELWith a flat surfaceMATTESFlat surfacesPLANUMFlat surface of bone.TABULARHaving a flat surface.FACETFlat surface of a gem.LEVELSFlat surfacesPLANATEHaving a flat surfacePLANEFlat surfacePLANAROf a flat surfacePLANAFlat surfaces of the skullPANESFlat surfacesPLANECompletely flat surfacePLANARLike a flat surfacePLANAFlat bone surfaces.PLANEFlat 2D surface